High chlorine COD digester

High chlorine COD digesterFollow the environmental protection industry standard of the People's Republic of China - Determination of Chemical Oxygen Demand for High Chlorine Wastewater - Chlorine Calibration Method.

The instrument adopts microcomputer technology for timed control of the heating electric furnace, which can simultaneously heat 5 conical flask reflux devices. To achieve the goals of energy conservation, reducing power load, and improving efficiency.

The instrument adopts a glass burr reflux tube instead of a spherical reflux tube, and uses air cooling technology instead of tap water cooling, which can save water and standardize the instrument. The chemical solution preparation, operation, and COD calculation of the instrument shall comply with HJ/T 70-2001.

Technical Specifications

1. Measurement range: 0-700mg/L, 0-7000mg/L (diluted water sample)

2. Measurement time: no more than 2 hours

3. Measurement error: Potassium hydrogen phthalate standard solution (500mg/L), relative standard deviation not exceeding 5.0%

4. Industrial organic wastewater (500mg/L), with a relative standard deviation not exceeding 8.0%

5. Environmental temperature: 5-40 ℃

6. Heating power: 1500W (AC 220V ± 22V, 50HZ)

High chlorine COD digesterInstructions for using the instrument panel buttons

1. Hair dryer

Control the fan on and off: Press once to turn on the fan, then press again to turn off the fan.

2. Timing

Dissolve time control setting key. The instrument is set to power on for 2 hours and 30 minutes. Each press of the timer button automatically deducts 10 minutes, and when using the standard reflux method to measure COD, it should be set to 2 hours.

3. Start

Start control button for digestion. After pressing the "Start" button, the instrument will perform heating reflux digestion and automatically count down from the set value (such as 2 hours). The heating indicator light will turn on. When the set time is reached, the instrument automatically stops heating and the heating indicator light goes out.

Instrument usage instructions

Before powering on the instrument, as much distilled water as possible should be added from the water injection port of the reflux pipe to ensure cooling effect.